Reciprocating pump



R. J. R UMORE REC IPROCATING PUMP June 2, 1942.

4 Sheets-Sheet 1 Filed Dec. 12, 1940 il I II 3mm mare June 2, 1942.

R. J, numos' RECIPROGATING PUMP Filed Dec. 12, 1940 4 Sheets-Sheet 2 June 2,4942.

R. J. RUMORE I 3.

- REGIPROCATING PUMP Filed Dec. 12, 1940 4 Sheets-Sheet 4 flJRum are '/07 V v 06 i Patented June 2, 1942 UNITED STATES PATENT OFFICE RECIPROCATING PUMP Ross J. Rumore, Birmingham. Ala.

Application December 12, 1940, Serial No. 369,888

1 Claim.

for sealing the piston rod in the pumping chamber.

A still further object of this invention is to provide an improved sealing gland in the crank chamber so that this chamber may be filled with a lubricant for lubricating the drawhead connected with the crank.

' to the lower end thereof a base plate 2|.

To the foregoing objects and to others which i may hereinafter appear, the-invention consists of the novel construction, combination and arrangement of parts as will be more specifically referred to and illustrated in the accompanying drawings wherein are shown embodiments of the invention;

Figure 1 is a detail side elevation partly broken i away and in section of a pump constructed according to an embodiment of this invention.

Figure 2 is a fragmentary longitudinal section taken through the pump.

Figure 3 is a transversesectional view taken on the line 33 of Figure 1.

Figure 4 is a fragmentary sectional view taken on the line 4-4 of Figure 1.

Figure 5-is a top plan view of the lower valve unit member. v

Figure 6 is a bottom plan of the unit shown in Figure 5.

Figure 7 is a sectional view taken on the line l-l of Figure 1.

Figure 8 is a fragmentary sectional view taken on the line 8-8 of Figure 3. I

Figure 9 is a fragmentary sectional view taken on the line 9-9 of Figure 5.

Figure 10 is a fragmentary sectional view taken on the line Ill-l0 of Figure 2.

Figure 11 is a plan view of the intake valve supporting means.

Referring to the drawings, the numeral l5 designates generally a storage tank in which Water or other liquid is adapted to be stored and the numeral I6 designates generally a reciprocating pump structure which is mounted on a base member secured to the tank or reservoir l5. The pump structure I6 is operated by means of a power member |8 in the form of an electric motor or the like. t

The pump structure l6 includes a crank housing l9 which has formed integral therewith, a downwardly extending standard which has secured The base plate 2| is provided with an elongated slot 22 forwardly of the standard 20 and a fastening bolt 23 is adapted to engage through the slot 22 and to be threaded into the base member H. The base plate 2| is also provided with a rearwardly opening slot 24 through which a fastening member 25 in the form of a bolt is adapted to extend. The bolt 25 is also threaded into the base member H. The crank chamber l9 has a crank shaft 26 journalled therein and a driven pulley 21 is secured to the crank shaft 26 outwardly of the housing l9 and is adapted to be connected to the motor |8 by means of a belt 28 or the like. The belt 28 engages about a driving pulley 29 which is mounted on the shaft 30 of the motor I8.

The housing l9 at its rear end is provided with a threaded opening 3| in which a threaded plug 32 engages. The plug 32 is provided with a flange 33 which is adapted to limit the extension of the plug 32 in the opening 3|. The opening 3| is provided in order that the crank shaft 26 and the parts associated therewith may be readily examined and in order that a suitable lubricant may be initially mounted within the chamber I9. The chamber I9 at one side thereof is provided with an annular plate 34 which is secured to the chamber l9 by fastening devices 35. The plate 34 is sufficiently large so that the crank 26 may be inserted in the chamber l9 upon removal of the plate 34.

The crank chamber I9 has mounted therein a drawhead cylinder 36 in which a drawhead or piston 31 is slidably mounted. The cylinder 36 is supported with the longitudinal axis thereof at right angles to the longitudinal axis of the crank shaft 26 by means of a pair of supporting webs 38 which. are formed integral with the side walls of the chamber I9 as shown in Figure 10. A connecting rod 39 is connected as at 40 to the offset 4| of the crank shaft 26 and the other or forward end of the connecting rod 39 is connected as at 42 to a wrist-pin which is mounted in the drawhead or piston 31.

A sealing gland generally designated as 43 is mounted in the forward wall of the crank :chamber or housing 59 and a plunger rod 45 is slidable through the sealing member 43 and is 'threadably connected as at :46 to the drawhead or "piston 31. The gland Y 43 comprises a threaded plug 41' which is threaded? in an opening 48 formed in theforward wall 44 and the plug His provided {with an outer flange 4 9 between whichand the forward side of the forward-wall 44 a gasket 50 is adapted to. be interposed. Theplug 41 is provided vinits inner end with a recess 5I within which a plunger, rod guiding member 52 is adapted tobe [mounted The plunger guiding member 52 is preferably pressed or otherwise firmlymounted. in the recess BI and may be of conventional construction so that when the plug 41 is tightly mounted in the opening 48, the guiding or sealing ring 52 will not only slidably guide the plunger rod 45 in the plug 41 but will also prevent any oil or other lubricant in the crank housing I 9 from flowing forwardly through the axial opening 53 which is provided in'thelplug 41. 1

a A pump housing'generally designated as 54 is di'spdse'd'forwardly of thecrank housing I9 and is connected with the crank housing I9 bymeans of a connecting wall 55. The connecting wall 55 in its-lower side is provided with an opening 56 so that when water or other liquid leaking out of the pump housing 54 or the crank housing I9 will drain out'through the bottom of the connecting wall 55. An'arcuate capor plate 51 is removably secured by fastening devices 58 on a rearwardly'projecting flange-or ledge 59 which is formed integral with the rear wall 60 of the pump housing 54,

The pump'housing .54 is supportedin axial alignment with thecrank housing I9'by means of a standard GIwhich is formed integral with the. pumphousingl9- and a base plate 62 is formed integralwith the standard I9 and engagesthe base plate IT. The plate 62 is provided with an elongated opening 63 forwardly of the standard ,6I through which-a fastening member 64 engages so that the base plate 62 may be adjusted lengthwise of the base member -II vThe plate 62 is also providedwith a rearwardly opening slot 65 which is in alignment with the opening 63 and also with the openings 22and24.:

A fastening memberfifi engages through the slot'65 and is threaded into the base member IT. The pump member 54 comprises a substantially cylindrical wall 61 which is formed integral with the standard 6i and withthe rear-wall 60. A forward wall or other head; 68 is formed integral with the side wall 61 and a flanged plug 69 is threaded into an axial opening-I which is formed in thehead. The sidewall Bl has formed therewith at;one side thereof and at a point below the longitudinal center thereof; a substantially L-shaped intake member-'1 I. The side wall 6'Iis provided with-anopening'IZ with which the intake member II communicates.

A pair of transversely extending partitions or inner walls'l3' and Hare formed-integral with theside wall 61 and divide the-side wall structure 6'! into an intakechamber I and rear-and foraward outlet'chambers I6 and TI. A cylinder I8 is mounted in the inner walls 13' and I4, the cylinder I8 being open" at each end and extending slightly beyond the 'rearside-of the rear wall or partition I3 and slightly beyond the forward side of the forward wall 14.

' der I0 and is connected to the forwardendof the plunger rod 45. A sealing gland generally d a d a 5 im l li le a it ita sd e ingljI formed in the rear wall 6 0. .andp,rpl?ides a means; for,;,slidab'ly sealing 'tliepliinger"rod45 inthe=refariwall 60 :1 N H A ;-'-Lhe sealing Eglan d "a tiifeaded I ii'readed into ai dwhibh is "formed at its rear A lar hiange 83. A gasket 84 is adapted to be riterposed between the flange 83- and tiff-freer side of the rear wall 60. A reduced tl'ir'eaded nipple 85 is carried by the rear end of the plug 82 and is provided with a bore 86 substantially larger in diameter than the diameter'of the plunger rod 45. A sealing element 8! is adapted to be mounted partly in the bore 86 and partly at the rear end of the nipple 85 so that when a cap 88 which is threaded onto the nipple 85 is tightened, the sealing element 81 will be compressed about the plunger rod 45.

. The plug 69 is provided'with a central threaded-opening 89in which an air valve member 90 is-mounted.- The .air. valve member 90 .isfprovide'd so that the desired air pressure. may be placed in the pumping chambers 76 and'I'L The pump-housin'g -member. 61 isprovided with aflat top wall 9| which-is .formed with arear fluid opening or passage .GZand-a forward fluidopening or passage 93. The rear. passage or. opening 92 is adaptedto communicate with therearchamber I6 and the forward opening 93 is adapted to communicate withthe forward chamber I1.

The top wall 9|,is alsoprovidedwith apair of spaced apart fluid passages 94 and 95 which communicate with the intake chamber I5. A valve cage membernflfi is mounted in the opening 94 and a valve cage memberilllismounted in the opening .95. .An..upward1y opening, ,check valve member 98 is slidably mounted on a headed stud or bolt 99 which is threaded intothe valve cage 96 andia spring. lflflismountedabout the stud or. bolt 99.and bears against the upper side ofthe valvehm'ember 98.... H

A valve member I.0I engagesltheupper side of thevalve cage ,9! :and is, constantly urged into -a closing.lposition by means of ,a spring I02 whichengages, about a headed, stud I 03, The stud I 03 is threaded into the central portion of the cage 91., i

A substantially rectangular, housing I04 is mountedon the .topwall 9,I ,and is provided with pairs of. ears I05 which engageover ears I06; carried byhthe top; wall 9I JFastening devices:

I01 engage through the ears ,I05 and are thread-- ed into the ears I06. A gasket, [08 gis-preferably interposed. between the lower end of the valve: housing member I04 andthertop wall. 9|. The valve housing memberl04 is provided with a top wall I09 which is formedwith a pair of openingsv H0 and III. A partition or dividin Wall II2 extends between the openings IIO and III and divides the interior ,of the housing member I04 into a pair of fluid chambers H3 and II4;. The partition H2, is preferably formed substantially S-shaped as shown in Figure 6 and whenthe housing member I0 4 is in applied position, the partition II 2 is adapted to engage between the valve members 98 and. I 0 I as shown in Figure 3.

The partition IIZLpIIO ides-a means whereby the intake openings sfl and- 95 maybe separated and whereby the, op,ening 92 may, be associated with the opening 95 andthe opening 93; may be associated with the opening 94.; A p air of valve pressed valve members II! and IIS are engageable with the upper; ends of the valve cage memnated as H9 is mounted on top of the'valve unit member I04 and comprises a dome-shaped body i'which ,isprovidedat its lower-end with a horizontal flange 12: an a verticalflange'IH extends downwardly ,from' the horizontal flange The flange I2I' is adapted to engage about the valve members I I1 and H8 and fastening devices I22 are mounted in the valve unit member I04 and extend upwardly through the horizontal flange I2I. Nuts I23 are threaded onto the bolts or fastening members I22 so that the dome or pressure member II9 may be readily removed from the valve unit I04 without loosening this unit I04 from the pump structure. The dome member I 29 is at a point upwardly from the lower end thereof with a horizontally disposed wall I24 which is formed with an axial opening I25.

A valve cage I23, is threaded into the opening I25 and a downwardly closing spring-pressed valve I2! ,is engageable with the upper end of the valve cage I26. The valve cage I26is inserted in the opening I25 from below the wall or partition I24. The dome I20 at its upper end is provided with a threaded plug I20 so as to either permit air to be discharged into the dome I20 or to permit the releaseof air. A laterally and downwardly extending outlet member I29 is formed integral with the dome member I20 3 and communicates with the dome I20 I through an outlet opening I30 which isformed in the dome I20 above the valve member I21.

The outlet opening I30 is positioned downwardly from the plug I28 so that when the pump is in operation, there will b ,a quantity of air disposed in the dome I20 above the outlet opening An outlet pipe I3I is threaded into the outlet 7 member I29 and extends vertically anddownwardly from the outlet member I29 and is connected by means of a coupling or a connecting member I32with the tank I5.

A vacuum priming member generally designated as I33 is connected with the intake member "II by means of a nipple or coupling I34. The

coupling I34 is connected to the priming mem ber I33 at the outlet side thereof and an intake pipe I35 is connected to the intake side of the priming member I33- The priming member I33 includes a lower liquid housing I30and an upper dome I31 which has a priming plug I38 remov- 5- ably mounted therein. The drain plug I39 is mounted in the bottom of the liquid housing I33. The motor I0 is preferably'mounted on top of the crank case I9 being mounted on a horizontally disposed platform I40 which is formed integral with the top of the crank case I9. Fastening members MI engage through the base I42 of the motor I3 and through the platform I40.

A lubricant cuip I43 is threaded into the crank case I9 so that the crank case I9 may be readily maintained in filled condition with "a suitable lubricant. Q 1 I I The dome I29 is preferably braced by'means of a plurality of radially arranged and vertically] wherein the plunger I97 moves to the right as cylinder I8.

. ture,- the motor I0 is adapted to be connected to a suitable source of electric current supply and upon operation of the motor "I8, the pulley 2l will be rotated and the crank 26 will be'rotated by the pulley 2I. Rotation of the crank 26 will effect reciprocation of. the drawhead3l and the plunger rod 45. 'Reciprocation of the plunger rod will reciprocate the plunger I9 in the As the plunger I9 moves to the left as viewed in Figure 2, asuction will be created in the chamber 'I'I so as to efiect a lifting of the intake valve member 98 thereby drawing water into the chamber II3. At the same time that the plunger 19 is moving to the left or in the direction of the intake chamber 16, the valve member IOI will be disposed in a closed position and the water or liquid in the chambers I6 and H4 will be forced upwardly so that the water in the chamber II4 will be forced past the valve I I8. The movement of the liquid under pressure past the valve II8 will inset the valve I2I in the dome I20 andthe liquid in the dome I20 will then flow outwardly through the'outlet opening I30, through the outlet member I29 and downwardly through the pipe I3I into the tank I5. On the return movement of the plunger I9,

viewed in Figure 2, the valve member IOI will be raised by the suction formed rearwardly of the plunger I9 and the valve member 98 will be maintained'in a closed position by the spring I00 and the liquid in the'chamber I I3 will be forced upwardly past the valve member III and upwardly into the dome I20 past the valve I2I'.

By providing a pumping structure as hereinbefore described, it will be possible to readily examine the several check valve units forming part of the pumpingstructure without completely taking apart the entire pump. This is accomplished :by first removing the dome structure I I9 whereupon the dome valve I21 may be removed and examined. The removal of the dome II9 will also expose the valve members H6 and III so that if desired these valve members can be re placed. If it is desired to examine or replace the lower valve members 98 and IOI, this may be accomplished by removing the valve unit member I04.

What I claim is: I

In a reciprocatory pump having a housing for a reciprocatory plunger, said housing formed with a forward and rear outlet chamber, an intake chamber arranged between the outlet chambers,

a pairof permanently open fluid passages on its top wall opening into said outlet chambers and an intake for saidintake chamber; the combination of the top Wall of said housing formed with a second pair of spaced aligned fluid passages opening into said intake chamber and arranged between and angularly related with re 'spect to said first pair of passages, a pair of normally seated spring controlled valves for said second pair of passages, an open bottom valve housing detachably secured upon said top wall for said pair of valves having an upper end wall provided with a depending substantially s shaped partition dividing said valve housing into a pair of open bottom compartments, each compartment having a passage of each of said pairs or" passages opening thereinto, said upper end wall of -a valve housing being formed with a pair "of spaced aligned passages having their axes offset with respect to the axes of said second pair of passages and each opening into a compartment, a second pair of normally seated spring horizontal partition having an axially arranged fluid passage,' a normally seated spring controlled valve for the passage in said partition, and a seat for said valve, said seat being constructed with a screw-throated barrel, and an outwardly extending flange on the lower edge thereof, said seat in said valve being adapted to be removed fromthe under side of said horizontal partition and said flange of said seat being adapted to 10 contact the under seat of said partition.

ROSS J. RUMORE. 

